Hello @keikeifung
Trains and buses in Switzerland are included in the Swiss Travel Pass. However, seat reservations on panoramic trains are not included. Mountain railroads (such as cable cars, funiculars and rack railroads) are discounted.
If you have made the online purchase with login, you can link the pass to the SBB Mobile App. This would then be visible under "Subscriptions and tickets".
If you have any further questions about your purchase, please contact the SBB Contact Center by phone or via chat. You can find the contact details here: Overview | SBB help & contact
Friendly greetings,
StéphanieB